qcacld-3.0: Allocate required memory for skb and radiotap

Mgmt txrx component clones skb and sends cloned
skb to its clients ex: packet capture component.
Need to Allocate memory and copy skb so that there
is enough space to copy radiotap header in skb for
packet capture mode.

Free skb cloned by Mgmt txrx component.

Change-Id: I6bc66b5916ec5a8cf28741e4fcb72f14650fdbfa
CRs-Fixed: 2730559

components/pkt_capture/core/src/wlan_pkt_capture_mgmt_txrx.c

@@ -414,23 +414,41 @@ pkt_capture_mgmt_tx_completion(struct wlan_objmgr_pdev *pdev,
 /**
  * process_pktcapture_mgmt_rx_data_cb() -  process management rx packets
  * @rx_params: mgmt rx event params
- * @nbuf: netbuf
+ * @wbuf: netbuf
  *
  * Return: none
  */
 static QDF_STATUS
 pkt_capture_mgmt_rx_data_cb(struct wlan_objmgr_psoc *psoc,
 			    struct wlan_objmgr_peer *peer,
-			    qdf_nbuf_t nbuf,
+			    qdf_nbuf_t wbuf,
 			    struct mgmt_rx_event_params *rx_params,
 			    enum mgmt_frame_type frm_type)
 {
 	struct mon_rx_status txrx_status = {0};
 	struct ieee80211_frame *wh;
 	tpSirMacFrameCtl pfc;
+	qdf_nbuf_t nbuf;
+	int buf_len;
 
-	if (!(pkt_capture_get_pktcap_mode(psoc) & PKT_CAPTURE_MODE_MGMT_ONLY))
+	if (!(pkt_capture_get_pktcap_mode(psoc) & PKT_CAPTURE_MODE_MGMT_ONLY)) {
+		qdf_nbuf_free(wbuf);
 		return QDF_STATUS_E_FAILURE;
+	}
+
+	buf_len = qdf_nbuf_len(wbuf);
+	nbuf = qdf_nbuf_alloc(NULL, roundup(
+				  buf_len + RESERVE_BYTES, 4),
+				  RESERVE_BYTES, 4, false);
+	if (!nbuf) {
+		qdf_nbuf_free(wbuf);
+		return QDF_STATUS_E_FAILURE;
+	}
+
+	qdf_nbuf_put_tail(nbuf, buf_len);
+	qdf_mem_copy(qdf_nbuf_data(nbuf), qdf_nbuf_data(wbuf), buf_len);
+
+	qdf_nbuf_free(wbuf);
 
 	pfc = (tpSirMacFrameCtl)(qdf_nbuf_data(nbuf));
 	wh = (struct ieee80211_frame *)qdf_nbuf_data(nbuf);